Ross, if you create a key schedule, I agree that it is not tied any one object so you can create as many instances as you need to make a list, but what category would you use? It seems bad cad management to create a key schedule based on a door category (which I just tried to test this out) because then every door has this parameter that you do not use where you could select task1, task2, etc. Would you just pick a category that is not likely to show up in your project like a pipe fitting? Sorry if that is a stupid question, I am just trying to work my way through and understand your method.